Units of measurement
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Square chain (ch²)
Square mile (mi²)
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Information
Square chain (ch²)
A square chain (ch²) is a British unit of area measurement equal to 404.69 m² or 1/10 acre.
Square mile (mi²)
A square mile (mi²) is a large unit of area measurement used to describe large land areas and administrative regions. 1 mi² = 2.59 km².